Accession Number:

ADD002915

Title:

Positron Probes for Mechanical Fatigue Detection System.

Descriptive Note:

Patent,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s):

• Holt,William H.
• Mock,Willis , Jr

Report Date:

1976-07-20

Pagination or Media Count:

6.0

Abstract:

The patent relates to positron-emitting probes that have certain features that facilitate the use of positrons for nondestructive testing of fatigued metals. The features include the use of an unfatigued substrate for supporting the positron-emitting material, electric andor magnetic fields to concentrate the positrons on the test item, and a thin scintillator window for use with those radioactive materials that emit a positron without emitting a time-correlated gamma photon.

Descriptors:

• *Probes
• *Nondestructive testing
• *Patents
• Positrons
• Metals
• Fatigue

Subject Categories:

• Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE